EP 0724142 A1 19960731 - Method for taring an electronic balance, for measuring with this balance or for measuring with another electronic apparatus
Title (en)
Method for taring an electronic balance, for measuring with this balance or for measuring with another electronic apparatus
Title (de)
Verfahren zum Tarieren einer Waage, zum Messen mit solch einer Waage oder zum Messen mit einem anderen elektronischen Gerät
Title (fr)
Procédé de tarage d'une balance électronique, de mesure avec cette balance ou de mesure avec un autre appareil électronique
Publication
Application
Priority
FR 9500992 A 19950127
Abstract (en)
The signal supplied by a sensor is compared with a ramp, and a counter started by the ramp generation is stopped when equality is observed. Two switches (K1,K2) are closed momentarily to start the ramp, and when they are reopened the control logic (CLC) starts the counter (CO). Rising and falling signals (V1,V2) are compared with strain-gauge wheatstone bridge outputs (S1-S3). Compsn. rules are established for membership functions of sensor output signals within their dynamic range. A resultant signal is computed and the number and form of its membership functions are modified by successive approximation. The compsn. rules are also adjusted to bring the mean error below a threshold.
Abstract (fr)
Pour résoudre des problèmes de tarage et/ou de mesure pour des appareils électroniques fabriqués en grande série, on utilise le concept de la logique floue. On crée des fonctions d'appartenance des variables de mesure et de résultat de l'appareil. On crée un jeu de règles de composition de ces fonctions d'appartenance. Et on donne un résultat de mesure pour l'appareil en appliquant ces règles à des grandeurs mesurées. <IMAGE>
IPC 1-7
IPC 8 full level
G01G 3/147 (2006.01); G01G 23/01 (2006.01); G01G 23/16 (2006.01); G06F 9/44 (2006.01); G06F 15/18 (2006.01); G06N 3/00 (2006.01); G06N 7/02 (2006.01)
CPC (source: EP)
G01G 23/01 (2013.01); G01G 23/166 (2013.01)
Citation (search report)
- [A] US 4873655 A 19891010 - KONDRASKE GEORGE V [US]
- [A] WO 9013794 A1 19901115 - LANGE ANTTI AARNE ILMARI [FI]
- [A] US 4137979 A 19790206 - ITANI SEIICHI
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0724142 A1 19960731; EP 0724142 B1 19971112; DE 69600097 D1 19971218; DE 69600097 T2 19980723; FR 2730053 A1 19960802; FR 2730053 B1 19970221; JP 2997411 B2 20000111; JP H08247835 A 19960927
DOCDB simple family (application)
EP 96400050 A 19960109; DE 69600097 T 19960109; FR 9500992 A 19950127; JP 3439096 A 19960129